KR930703670A - Tracking adjustment circuit - Google Patents
Tracking adjustment circuitInfo
- Publication number
- KR930703670A KR930703670A KR1019930702254A KR930702254A KR930703670A KR 930703670 A KR930703670 A KR 930703670A KR 1019930702254 A KR1019930702254 A KR 1019930702254A KR 930702254 A KR930702254 A KR 930702254A KR 930703670 A KR930703670 A KR 930703670A
- Authority
- KR
- South Korea
- Prior art keywords
- adjustment circuit
- tracking adjustment
- tracking
- circuit
- adjustment
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0948—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/094—Methods and circuits for servo offset compensation
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4102801.5 | 1991-01-31 | ||
| DE4102801A DE4102801A1 (en) | 1991-01-31 | 1991-01-31 | TRACK CONTROL |
| PCT/JP1992/000170 WO1992014744A1 (en) | 1991-02-21 | 1992-02-19 | Process for producing d-allosan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930703670A true KR930703670A (en) | 1993-11-30 |
| KR100247654B1 KR100247654B1 (en) | 2000-03-15 |
Family
ID=6424041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019930702254A KR100247654B1 (en) | 1991-01-31 | 1992-01-28 | Tracking control circuit |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0569412B1 (en) |
| JP (1) | JPH06504645A (en) |
| KR (1) | KR100247654B1 (en) |
| DE (2) | DE4102801A1 (en) |
| ES (1) | ES2137943T3 (en) |
| SG (1) | SG66291A1 (en) |
| WO (2) | WO1991018393A1 (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758249A (en) * | 1980-09-24 | 1982-04-07 | Olympus Optical Co Ltd | Optical system recording and/or reproducing device |
| JPS5862868A (en) * | 1981-10-09 | 1983-04-14 | Pioneer Video Corp | High speed address information searching system of information reproducing device |
| JPS58166567A (en) * | 1982-03-26 | 1983-10-01 | Matsushita Electric Ind Co Ltd | Retrieving device of information track |
| JPS59152546A (en) * | 1983-02-21 | 1984-08-31 | Toshiba Corp | Optical disk record reproducer |
| JPS60121533A (en) * | 1983-12-02 | 1985-06-29 | Matsushita Electric Ind Co Ltd | Optical information recording and reproducing device |
| JP2644720B2 (en) * | 1985-02-25 | 1997-08-25 | 株式会社日立製作所 | Truck retracting method |
| JPS61214230A (en) * | 1985-03-20 | 1986-09-24 | Hitachi Ltd | Optical disc device |
| JPS61260427A (en) * | 1985-05-14 | 1986-11-18 | Olympus Optical Co Ltd | Optical information recording and reproducing device |
| JP2568525B2 (en) * | 1986-12-10 | 1997-01-08 | 松下通信工業株式会社 | Runaway prevention device for optical pickup |
| JP2557896B2 (en) * | 1987-07-31 | 1996-11-27 | 株式会社東芝 | Disk unit |
| JPS6437729A (en) * | 1987-08-04 | 1989-02-08 | Canon Kk | Optical information recording and reproducing device |
| JP2563383B2 (en) * | 1987-10-23 | 1996-12-11 | 松下電器産業株式会社 | Recording and playback device |
| JP2656812B2 (en) * | 1988-10-12 | 1997-09-24 | キヤノン株式会社 | Tracking control device |
-
1991
- 1991-01-31 DE DE4102801A patent/DE4102801A1/en not_active Withdrawn
- 1991-05-14 WO PCT/EP1991/000892 patent/WO1991018393A1/en unknown
-
1992
- 1992-01-28 ES ES92903403T patent/ES2137943T3/en not_active Expired - Lifetime
- 1992-01-28 WO PCT/EP1992/000170 patent/WO1992014240A1/en active IP Right Grant
- 1992-01-28 DE DE59209753T patent/DE59209753D1/en not_active Expired - Lifetime
- 1992-01-28 JP JP4503247A patent/JPH06504645A/en active Pending
- 1992-01-28 KR KR1019930702254A patent/KR100247654B1/en not_active IP Right Cessation
- 1992-01-28 SG SG1996008112A patent/SG66291A1/en unknown
- 1992-01-28 EP EP92903403A patent/EP0569412B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0569412B1 (en) | 1999-09-29 |
| WO1991018393A1 (en) | 1991-11-28 |
| DE59209753D1 (en) | 1999-11-04 |
| ES2137943T3 (en) | 2000-01-01 |
| WO1992014240A1 (en) | 1992-08-20 |
| KR100247654B1 (en) | 2000-03-15 |
| JPH06504645A (en) | 1994-05-26 |
| DE4102801A1 (en) | 1992-08-06 |
| EP0569412A1 (en) | 1993-11-18 |
| SG66291A1 (en) | 1999-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69224409T2 (en) | Amplifier circuit | |
| DE69213986D1 (en) | Circuit arrangement | |
| DE69206651T2 (en) | Circuit arrangement | |
| DE69216663D1 (en) | Circuit | |
| KR900012227A (en) | Tracking control circuit | |
| DE69220456T2 (en) | Circuit arrangement | |
| DE69215184D1 (en) | Integrated circuit | |
| DE69128652D1 (en) | Control circuit | |
| DE69207643D1 (en) | Adjustable amplifier circuit | |
| KR900020943U (en) | VTR automatic tracking adjustment circuit | |
| DE69105073D1 (en) | Power adjustment circuit. | |
| DE69215995T2 (en) | Amplifier circuit | |
| DE69215128D1 (en) | Tracking setting | |
| KR930703670A (en) | Tracking adjustment circuit | |
| KR920007214U (en) | Horizontal size adjustment circuit | |
| KR930010063U (en) | Automatic range adjustment circuit | |
| DE69212711D1 (en) | Amplifier circuit | |
| KR930007413U (en) | Tracking control circuit | |
| KR920014182U (en) | Focus adjustment circuit | |
| KR920020384U (en) | Dividing circuit | |
| KR920015634U (en) | Tracking adjustment circuit using level meter | |
| KR930005768U (en) | Bias circuit | |
| KR930003901U (en) | Automatic fine adjustment circuit | |
| KR920015535U (en) | Bihonic circuit | |
| KR910019094U (en) | Delay time adjustment circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20091210 Year of fee payment: 11 |
|
| LAPS | Lapse due to unpaid annual fee |